come in handy put to use
That key will come in handy if you lock yourself out.
要是你把自己锁在了屋外,那把钥匙就派上用场了。
—— 柯林斯例句This money can go towards the new camera you´re saving up for.
你正攒钱买新照相机,这笔钱可派上用场。
—— 辞典例句Lead is often used because of its weight.
铅因其重而常派上用场。
—— 辞典例句Both of these devices also make use of thumb - boards when text data entry is necessary.
其中设备还采用了拇指板,当需要输入文本时就可以派上用场了。
—— 给力词典精选The effect might have been invigorating had this huge sum been poured immediately into the economy.
如果这笔庞大的拨款立即派上用场,对当时的经济可能起滋补作用。
—— 辞典例句